Methods and computer-readable media are described herein for providing an automated validation of vehicle positioning and corresponding error notification. According to various aspects, a first position of a vehicle may be determined using a first positioning system. A second position of the vehicle may be determined using a second positioning system. An offset between the first and second positions of the vehicle may be determined. If the offset exceeds a threshold offset, a notification may be provided to indicate a potential error in the position of the vehicle.

A radar device comprises a transmitter, a receiver, a first radar image production component, a second radar image production component, a display component, and an echo width adjuster. The transmitter transmits a pulse signal. The receiver receives an echo signal during a transmission and reception period of the pulse signal. The first radar image production component produces a radar image of a first display range on the basis of the echo signal. The second radar image production component produces a radar image of a second display range that is wider than the first display range on the basis of the echo signal. The display component selectively or simultaneously displays the radar image of the first display range and the radar image of the second display range. The echo width adjuster adjusts pulse width of echo included in the radar images or the echo signal according to the display range of the radar image.

A radar device comprises a transmitter, a receiver, a first radar image production component, a second radar image production component, a display component, and an echo width adjuster. The transmitter transmits a pulse signal. The receiver receives an echo signal during a transmission and reception period of the pulse signal. The first radar image production component produces a radar image of a first display range on the basis of the echo signal. The second radar image production component produces a radar image of a second display range that is wider than the first display range on the basis of the echo signal. The display component selectively or simultaneously displays the radar image of the first display range and the radar image of the second display range. The echo width adjuster adjusts pulse width of echo included in the radar images or the echo signal according to the display range of the radar image.

A ship vicinity information display device is provided, which is capable of displaying a position etc. of a destination of another ship based on information of the destination obtained from the other ship, in a mode which is intuitively easy to understand. A radar indicator may include a display unit, an AIS interface, and processing circuitry. The display unit may be capable of displaying an image of a situation in the vicinity of one ship. The AIS interface may receive the information of the destination of the other ship. The processing circuitry may acquire a longitude and latitude of the destination based on the destination information of the other ship and graphically display at least one of the position of the destination of the other ship and a direction of the destination from the other ship (other-ship destination symbol), on the display unit.

A method for detecting obstacles in the vicinity of an aircraft. The method comprises the following steps: examining a surrounding space by means of an obstacle sensor, the obstacle sensor generating positioning data relating to a plurality of obstacle points; determining, from among the obstacle points, each relevant point situated within a predetermined detection volume, the detection volume being different from the surrounding space; and displaying the relevant points on a display.

A system for the display of radar returns is provided. The system comprises a radar configured to provide radar data, a processor, and a display configured to present the radar data. The system comprises memory including computer program code configured to, when executed, cause the processor to receive the radar data, wherein an object is represented within the radar data; receive additional data from a data source other than the radar; and determine object characteristic(s) of the object using the radar data and additional data, wherein the object characteristic(s) comprises a position, a velocity, an intensity, or an object classification of one or more objects. The computer program code is also configured to cause the processor to cause presentation of the radar data including a representation of the object and an indication of the corresponding object characteristic(s). A marine electronic device and a non-transitory computer readable medium are also provided.

An apparatus for nautical tracking, where the apparatus detects at least one object. The apparatus further determines radar information associated with the at least one object, and calculates a first velocity vector associated with the at least one object. The apparatus further determines information associated with a tidal current of the water body, and calculates a second velocity vector based on the information associated with the tidal current. The apparatus further compares the first velocity vector and the second velocity vector in order to classify an object of the at least one object as a target, and further notifies a user of the target.

An apparatus for nautical tracking, where the apparatus detects at least one object. The apparatus further determines radar information associated with the at least one object, and calculates a first velocity vector associated with the at least one object. The apparatus further determines information associated with a tidal current of the water body, and calculates a second velocity vector based on the information associated with the tidal current. The apparatus further compares the first velocity vector and the second velocity vector in order to classify an object of the at least one object as a target, and further notifies a user of the target.

A system and method for rendering near range weather information in a first aspect and mid-to-long range weather information in a second aspect includes transforming the mid-to-long range weather information to preserve certain relationships between the near range rendering and the mid-to-long range rendering while compressing distances to fit both renderings on a single display. Criticality metrics are maintained for the compressed mid-to-long range rendering by identifying the most critical weather indicator and applying it to the compressed weather cell rendering.

A ship navigation assisting device includes: an area setter 304 that sets, for a target ship, a polygonal safe navigation area defined by a plurality of vertices and surrounding the target ship; a collision point calculator 305 that calculates, based on a speed of the own ship, a relative position between the own ship and the target ship, and a velocity vector of the target ship, collision points between each of the plurality of vertices constituting the safe navigation area and the own ship; and a collision danger area calculator 306 that connects the plurality of collision points calculated by the collision point calculator 305 to calculate a collision danger area.